Potassium Iodide → N-cyclobutyl-3-[7-{2-[isopropyl(methyl)amino]ethoxy}-4-methyl-1-oxoisoquinolin-2(1H)-yl]-4-methylbenzamide

Participants

Reaction Conditions

Reaction Steps

A mixture of 3-[7-(2-chloroethoxy)-4-methyl-1-oxoisoquinolin-2(1H)-yl]-N-cyclobutyl-4-methylbenzamide (131 mg), potassium iodide (102 mg), and N-methylisopropylamine (0.19 ml) were stirred in DMA (2 ml) and heated under microwave irradiation conditions (Personal Chemistry Emrys Optimizer with 300 W magnetron) at 150° C. for 1 hour. The reaction mixture was diluted with ethyl acetate and washed with water (×5), brine (×2), dried (magnesium sulfate) and concentrated. Purification by column chromatography on a silica column eluting using initially 10% methanol/ethyl acetate and then a 99:1 mixture of 10% methanol/ethyl acetate and aqueous ammonia solution gave N-cyclobutyl-3-[7-{2-[isopropyl(methyl)amino]ethoxy}-4-methyl-1-oxoisoquinolin-2(1H)-yl]-4-methylbenzamide (74 mg) as a cream solid; NMR Spectrum: (DMSOd6) 0.98 (d, 6H), 1.68 (m, 2H), 2.06 (m, 2H), 2.11 (s, 3H), 2.21 (m, 2H), 2.25 (s, 3H), 2.28 (s, 3H), 2.77 (t, 2H), 2.84 (m, 1H), 4.15 (m, 2H), 4.43 (m, 1H), 7.09 (s, 1H), 7.45-7.51 (m, 2H), 7.71-7.74 (m, 2H), 7.80 (s, 1H), 7.89 (d, 1H), 8.60 (d, 1H); Mass Spectrum: M+H+ 462.

Provenance & Evidence